[U-Boot] [PATCH][v2] driver/nand: Add support of 16K SRAM for IFC 2.0

[Prabhakar Kushwaha]

Internal SRAM has been incresed from 8KB to 16KB for IFC cotroller ver 2.0.

Update the page offset calculation logic to support the same.

Signed-off-by: Prabhakar Kushwaha <prabha...@freescale.com>
---
Changes for v2: rebased the patch

 drivers/mtd/nand/fsl_ifc_nand.c |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 280e14e..fd5f536 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -24,6 +24,7 @@
 #endif
 
 #define FSL_IFC_V1_1_0 0x01010000
+#define FSL_IFC_V2_0_0 0x02000000
 #define MAX_BANKS      CONFIG_SYS_FSL_IFC_BANK_COUNT
 #define ERR_BYTE       0xFF /* Value returned for read bytes
                                when read failed */
@@ -1040,6 +1041,30 @@ static int fsl_ifc_chip_init(int devnum, u8 *addr)
        if (ret)
                return ret;
 
+       if (ver >= FSL_IFC_V2_0_0) {
+               switch (csor & CSOR_NAND_PGS_MASK) {
+               case CSOR_NAND_PGS_512:
+                       priv->bufnum_mask = 31;
+               break;
+
+               case CSOR_NAND_PGS_2K:
+               priv->bufnum_mask = 7;
+               break;
+
+               case CSOR_NAND_PGS_4K:
+               priv->bufnum_mask = 3;
+               break;
+
+               case CSOR_NAND_PGS_8K:
+               priv->bufnum_mask = 1;
+               break;
+
+               default:
+                       printf("ifc nand: bad csor %#x: bad page size\n", csor);
+                       return -ENODEV;
+               }
+       }
+
        ret = nand_scan_ident(mtd, 1, NULL);
        if (ret)
                return ret;
-- 
1.7.9.5


_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot